| MCM-41作载体制备磷化钼加氢脱硫催化剂 |
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| 引用本文： | 解建国,王安杰,李翔,胡永康.MCM-41作载体制备磷化钼加氢脱硫催化剂[J].石油炼制与化工,2007,38(2):1-5. |
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| 作者姓名： | 解建国 王安杰 李翔 胡永康 |
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| 作者单位： | 1. 大连理工大学精细化工国家重点实验室,大连,116012
2. 大连理工大学精细化工国家重点实验室,大连,116012;辽宁省级高校石油化工技术与装备重点实验室 |
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| 基金项目： | 国家自然科学基金;高等学校博士学科点专项科研项目 |
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| 摘 要： | 通过原位还原方法制备了MCM-41担载的MoP催化剂并用TPR和XRD方法对其进行了表征。选用二苯并噻吩(DBT)作模型化合物,考察了催化剂的加氢脱硫(HDS)反应活性和产物分布。结果表明,MoP/MCM-41催化剂的HDS反应活性明显高于MoP/Al2O3催化剂,从加氢脱硫产物分布看,DBT在MoP/Al2O3催化剂上主要通过直接脱硫路径脱硫,而在MoP/MCM-41催化剂上,直接脱硫和预加氢脱硫路径都发挥了重要作用。由中性和碱性浸渍液制备催化剂的HDS活性相当,高于用酸性浸渍液制备的催化剂。
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| 关 键 词： | 磷化钼 加氢脱硫 催化剂 制备 pH值 |
| 修稿时间： | 2006-05-24 |
PREPARATION OF MCM-41 SUPPORTED MOLYBDENUM PHOSPHIDE HYDRODESULFURIZATION CATALYST |
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| Xie Jianguo,Wang Anjie,Li Xiang,Hu Yongkang.PREPARATION OF MCM-41 SUPPORTED MOLYBDENUM PHOSPHIDE HYDRODESULFURIZATION CATALYST[J].Petroleum Processing and Petrochemicals,2007,38(2):1-5. |
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| Authors: | Xie Jianguo Wang Anjie Li Xiang Hu Yongkang |
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| Affiliation: | 1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012 ; 2. Liaoning Key Laboratory of Petroleum Technology and Equipments |
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| Abstract: | MCM-41 mesopore molecular sieve supported molybdenum phosphide catalyst was prepared by in-situ reduction method.The prepared catalysts were characterized by TPR and XRD.The hydrodesulfurization(HDS)activity and product distribution of the catalysts were studied using a model fuel,0.8% dibenzothiophene(DBT)in decalin.The results showed that as compared with MoP/Al2O3 catalyst,MoP/MCM-41 catalyst possessed higher HDS activity.The distribution of HDS products suggested that over MoP/Al2O3 catalyst direct desulfurization was the dominating reaction route,and over MoP/MCM-41 catalyst both hydrogenolysis and pre-hydrogenation reactions played important roles.The effect of impregnation pH value on the HDS activity of MoP/MCM-41 catalysts was also investigated.It was found that MoP/MCM-41 catalysts impregnated by basic or neutral solutions exhibited higher HDS activity than those catalysts impregnated by acidic solutions. |
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| Keywords: | molybdenum phosphide hydrodesulfurization catalyst preparation pH value |
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